Oil-burner.



L. B. STROW & T. EJMQMILLAN.

' OIL-BURNER.

APPLICATION FILED NOV. 9, 1912.

1 075327. Patent'ed Oct. 21, 1913.

Attorneys UNITED STATES PATENT OFFICE. I i

I4. I. .LNED THOMAS E. MQMILLAN, OF SAN ANTGNiO, TEXAS, ASSIGNORS OF ONE- I'OUBTH TO ROBERT M. BMRD AND ONE-FOURTE T 5. E. YATES, OF SAN ANTONIO,

TEXAS.

OIL-BURNER.

Specification of Letters Patent.

Application filed November 9, 1912. Serial No. 730,463.

To all whom it may concern:

Be it known that We, L. B. Snow and THOMAS E. MCMILLAN, citizens of the United States, residing at San Antonio, in

the county of Bexar, State of Texas, have invented a new and useful Oil-Burner, of which the following is a specification.

The present invention appertains to oil or hydro-carbon burners, and aims to provide a burner of this character which is applicable to various stoves, furnaces, boilers, heaters or the like so as to produce'a high degree of combustion or maximum heating efi'ect with a minimum consumption of fuel.

It is also the object of the present invention to provide a hydro-carbon burner of novel and improved construction, and to provide a burner of this character which shall be simple, durable, compact, and inexpensive in its construction, as well as being cfiicient, and economical in its-use.

To the above and other ends, which will appear as the description proceeds, the invention resides in the combination and ar rangemeni; of parts and in the details of construction hereinafter described and claimed, it beingjunderstood that changes in the precise em odimcnt of the invention herein disclosed can be made Within the scope of what is claimed without departing from the spirit of the invention.

. The preferred embodiments of the invention have been illustrated in the accomp'unying drawing, wherein like reference charactors have been employed to denote corresponding parts, and wherein z Figure l is a perspective view of the preferred form of the intention, parts being broken away. Fig. 2 is similar view of the variations, parts being broken away. Fig. 3 is a vertical central section of one of the burners proper illustrated in Fig. 1.

Referring in detail to the drawing, the

present invention embodies as its essentials,

a double burner 4 wherein each burner proper includes a gasifying or generating coil A heating pipe 6 is attached to each coil' and is curved so as to project across the path of the-products of combustion, the two ieatnig pipes 6 passing out through the side of the firebox or through the fire-box door, as indicated by the numeral 7, it being understood that as illustrated, the double burner is applied to an ordinary cook stove and is seated within the fireboxor oombustion chamber. The supply or feed pipes 8 are attached to the other ends of the respective heating pipes 6, and extend to a double valve 9, from whence, the supply of feed pipes are merged together into a single or unitary pipe 10 extending to the tank or cfanlll for containing the oil or other liquid In the form illustrated in Fig. 2, the double burner 4' comprises two coils 5' which are of a difierent confi oration than the coils above described, the mating pipes 6 extending along the path of the products of combustion to the Stovepipe, and extend ing up the stove pipe to a suit-able point, from whence, they extend to the exterior. The supply or feed pipes 8' are each provided with a suitable controlling valve 9 and merge into a single or unitary pipe-10 extending to the tank or can 11'.

From the above, it will be manifest that the number and figurations of the burner coils will depend on the character of the stove, burner, or the like, and that the heat ing pipes may be passed through the path of the products of combustion in any suitable or preferable manner.

In the former burner, designated by the numeral 4, the coil 5 is of frusto-conical form, whereas in the burner 1, the coil 5' consists in a plurality of spaced parallel poris preferable when the burner is to bc employed in connection with a stove, heater or the like, whereas the latter form of coil is preferable for use in furnaces, or for other like purposes wherein a greater amount of heat is required. In the hereinafter descrip- .tion, the details of the former burner are elicited, although it is understood that said description will apply, so far as it apper The burner 4 comprises a hollow base 12, preferably in the form of a casting, although it may be fashioned in any other manner as will be apparent to the mechanic. The base as illustrated is of elongated or somewhat elliptical cont-cur, although it is understood that the particular size and form of the base will depend upon the number of burners employed, whether single, double, treble or greater. This base 12 provides an air chamher for supplying the air for supporting combustion, the bottom of the base being open so as to communicate with the ash pit,

tions connected by bends. The former coil.

tains, to the other or second form of burner.

Patented Oct. 21, 1913.

taining the same'on the top, from whence it may be removed when necessary.

The top of the base is provided with an opening 17 for each burner, and with a tapered collar 18 around each opening. This collar 18 is provided with diametrically opposite recesses or openings 19, which extend throughout the length of the collar. The top 16 is also provided with an integral member extending diametrically across the opening 17 between the recesses 19 of the collar, said member 20 having its inter- 'mediate or central portion enlarged so as to provide a circular portion 21 concentric with the opening and collar. The member 20 is also provided with upstanding flanges 22 along its edges thereby providing a channel, the intermediate portion of which is enlarged-into a cup 21. The collar 18 is also provided with a pair'of diametrically opposite notches 23 in its upper edge, the said notches being arranged at quadrature to the recesses 19, or being arranged on a line at right angles to the line connecting the recesses.

The top of the base is provided with an annular upstanding flange 24 surrounding and spaced from each collar 18 and forming a channel around the collar communicating with the channel 20.

The lower end of the gasifying or generating coil 5 is bent to extend diametrically of the coil and rests or seats within the notches 23 so as to cross over the channel 20 at right angles therewith. The inner end of the coil is also provided with an upper outlet aperture 25, which is directed axially through the coil, 'the cup 21 being disposed directly beneath the outlet 25. The said cup therefore provides a priming cup for the coil, it being noted that the fuel which is permitted to drip into the cup 21 may follow the channel 20 to its ends and then into the channel formed by the flange 2-1 so as to surround the collar, in Ol'ClOP'tllflt when the fuelis ignited,'the coil .may be given an initial heat in an effective manner. The flange 24 also prevents the fuel from spreading over the surfaceof the topof the base, and constrains it to remain in proximity to the collar and within the'channel 20 and cup 21.

The upper end of the coil is also bent to pass diametrically of the coil or over the coil, and a reflector 26 is suspended or hung from the upper end'of the coil axially over the outlet 25. The reflector 26 is in the form of a disk, and its lower side or bottom is concaved, as designated by the numeral 27, and the top is provided with an car 28 for en gaging the upper end of the coil. .The lower convolution of the coil 5 surrounds the upper end of the-collar 18am} the coil rises from the collar, the inner end of the coil being closed by a cap, plug or the like.

In operation, the fuel is permitted to How into the coil through the heating pipe .so as to'drip from the outlet 25 into the priming cup 21, in which event, the fuel in the priniing cup is ignited for giving the initial heat to the gasifyi ng or generating coil. The coil in being heated will start the generation or vaporization of the fuel so that the resulting gas will be discharged from the outlet 25 axially of the coil. The gas in being ignited will direct the flames axially upward through the coil so as to strike the reflector 26, from which the flameswill be directed radially and downwardly toward the various convolutions of the coil. The coil is thus continually heated in an effective manner so as to continue the generation of the fuel and the heating pipe lying in the path of the products of combustion will become heated as the combustion progresses so that the fuel will thus be given an initial heat as it passes through the heating pipe to the coil, which will decrease the amount of heat necessary for the generation of the fuel within the coil. The fuel may thus be generated or vaporized effectively for producing a high degree of combustion. The reflector 26 will also become heated and in becoming highly heated, has the tendency to consume extraneous particles in order that the deposit of soot may be reduced to a minimum. The air for supporting combustion is supplied upwardly from within the base 12 through the opening 17 in its top, so as topass upwardly into the coil around the outlet 25. I

From the foregoing, taken in connection with the drawing, the advantages of the present burner will be manifest to those versed in the art, it being noted that thisburner provides for high efficiency in.the use thereof, and is so constructed as to meet with the requirements and to carry out the objects aimed at satisfactorily. It is-desirahle to run suitable rods or wires through the coils and through the fuel heating pipes to regulate the How of fuel andgas and in order to prevent to a certain extent, the gas from expanding back into the pipe or reservoir, the said rods or wires also assisting in the gasifying of the fuel.

Having thus described the invention, what is claimed as new is 1. In a hydrocarbon burner, a hollow base having an opening in its top and. a

channel spanning the opening, and a gasifying coil over the said opening, the innerend of the coil projecting over the said opening at quadrature to the channel and having an outlet directed through the coil, the outlet being disposed above the channel inorder that the fuel nay drip into the channel.

2. In a hydro-carbon burner, a hollow base having an opening in its top, a collar around the opening, and a channel spanning the opening, and a gasifying coil supported by the collar and having'its inner end extending diametrically through the collar at quadrature to the channel, the inner end of the coil having an outlet directed thr'ough the coil, the outlet being disposed above the channel in order that the fuel may drip into the channel.

3. In a hydro-carbon burner, a hollow base having an opening in its top, acollar around the opening" and a channel in the opening communicating through the collar and being formed with a priming cup, and a gasifyihg coil supported by the collar and having its inner and extending diametricallv throii 'h the collar the inner end of the coil having an outlet above the primingcup and directed through the coil.

4. In a hydro-carbon burner, a hollow base having anopening in its top, a collar around the opening. and a channel extending across the opening, and a gasifyingcoil supported by the collar, the inner end of the coil, the collar having openings at the collar and having an. outlet directed through 'the coil, the collar having openings at the end of the channel and the channel being onlarged below the outlet to provide a priming cup. p

5. In a hydro-carbon burner, a hollow base having an opening in its top, a collar around the opening, and a channel extending across the hpening, and a gasifying coil supported by the collar, the inner end of the coil projectin diametrically through the collar and having an outlet directed through the coil, the collar having openings at the end of the channel and the channel being enlarged below the outlet to provide a priming cup, the top of the base having a channel surrounding the collar and communicating 'with the ends of the aforesaid channel.

6. In a ,Thydro-carbon burner, a hollow baseahaving an opening in its top, a collar around the opening, and a channel extending across the opening, and a gasifying coil supportedbv the collar, the inner end of the coil projecting diametrically throfigh the collar and having an outlet directed through the coil, the collar having openings at the end of the channel and the channel being enlarged below the outlet to provide a priming cup, the top of the base having a marginal flange and having a flange surroundin and spacedfrom the collar.

In a hydro-carbon burner, hollow base having an opening in its/top, acollar around the opening, and a channel extending across the opening, a gasifying coil supported by the collar, the inner end of the coil projecting diametrically throughthe collar and having an outlet directed through the coil, the channel being enlarged below the" outlet to provide a priming cup, the upper end of the coil projecting diamlrlri cally, and a reflector hung from the upper end of the coil over the said outlet.

8. In a hydro-carbon burner, a hollow base having an opening in its top, a collar around the opening, and a channel extending across the opening, the collar having openings at the ends of the channel and having notches in its upper cdgeut quadrature to the opening, a gasifying coil having its inner end projecting diametrically and Seated in the said notches, the inner end of the coilliaviug an opening directed through the coil, and the said channel being enlarged below the said outlet to provide a priming cup,

t). In a hydro-carlmn burner, a hollow base having an opening in its top,a'collar around the opening, and a channel extending across the opening, the-collar having openings at the ends of the channel and having notches in its upper edge at quadrature to the openings, a gasifyiug coil having its inner end-projecting diametrically and seated in the sail notchcs,.the in'ncr end of the coil having an opening directed through the coil, the said channel beingenlarged bglow the said outlet to provide a priming cup, the upper end of the coil pro jecting diametrically thereof, a reflector hung from the upper end of the coil over the outlet, and the top of the base having a inarginal flange and a flange surrounding and spaced from the collar.

In testimlmy that We claim the foregoing as our own, we have hereto aflixed our signatures in the presence of two witnesses.

' :11. B. STROIV.

THOMAS E. MGMILLAN.

Witnesses:

S. 'J. Scorr,

S. O. Ronnurson. 

